package Spring5.第二章.demo2_7_策略模式.支付;

public abstract class Payment {
    // 支付类型
    public abstract String getName();

    // 查询余额
    protected abstract double queryBalance(String uid);

    // 扣款支付
    public PayState pay(String uid, double amount) {
        if(queryBalance(uid) < amount) {
            return new PayState(500, "支付失败", "余额不足");
        }
        return new PayState(200, "支付成功", "支付金额：" + amount);
    }
}
